Drilling attachment for temper screws



April 29, 1924. 1,491,787

w. BRUNER DRILLING ATTACHMENT FOR TEMPER SCREWS Filed Nov. 1'7. 1922 Wumzssas A u 46 67 K ?atented Apr. 2%, i924.

nwrrsn stares WILLIAM LESLIE BRUNEB, OF WICHITA FALLS, TEXAS.

DRILLING ATTACHMENT FOR TEMPER SCREWS.

Application filed November 17, 1522.

T 0 all whom 2'2. may concern:

Be it lniown that T, VVILLIAM LESLIE BRUNnn, a citizen of the United States, residing at Wichita Falls, in the county of Wichita and State of Texas, have invented a new and useful Drilling'littachment for Temper Screws, of which the following is a specification.

The inventionrelates to a drilling attachment for a temper screw designed to take the weight of the tools off from the top of the derrick and apply said weight at about the center of said derrick, where said derrick is provided with reinforcement.

Another object of the invention is to prevent the wear of the main cable while working through the pulley and have the wear on a short cable provided for this purpose that can be replaced when worn out without interfering with the main cable.

Another object of this invention is to provide a device of this nature that can be applied on any standard cable tool drilling rig and can be manufactured at a very nominal cost.

The nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawing forming a part of this application. The invention residing in the construction, combination arrangement of parts as claimed.

In the accompanying drawing the various parts are referred to by numbers. And, whereas,

Figure 1 is a side view showing the method of using the device.

Figure 2 is a view showing the construction and method of attaching the device to the derrick.

The device forming the subject matter of this invention comprises two main supports 1, which are securely attached to the derrick 2. The derrick and drilling rig are shown here merely to illustrate the method of using this invention and are not claimed as a part of this application. 3 represents the frame or base of the drilling rig with three spools or drums & mounted thereon. 5 is a flywheel mounted upon a flywheel shaft 6 with an arm 7 attached thereto. 8 is a walking beam hinged at the front of Serial No. 601,563.

the drilling rig at 9. The connecting rod 10 is fastened to the walking beam 8 and the arm 7. The dotted line 11 illustrates a pulley. 12 is a belt running from the pulley 11 to the flywheel 5, said pulley 11 is 'iZlOUIliZGCl on a shaft 13. 14; shows the method dotted outline in Figure 2, so as not to interfere with the main cable when the device is not in use.

Thus it will be noted that by applying power to the shaft 13, which is connected by means of a pulley and belt to the flywheel 5, the arm 7 on the flywheel shaft 6 will rotate and work the walking beam up and down, thus providing the motion for standard tool drilling. It will also be noted that While drilling the load and wear is on the short cable and the main cable is slacked off so as not to interfere with the drilling.

While it is believed from the foregoing description the nature and advantages of the invention will be readily apparent, I desire to have it understood that I' do not limit myself to what is herein shown and described, and that such changes may be resorted to when desired as fall within the scope of what is herein claimed.

What I claim is:

A drilling attachment for a temper screw comprising two main supports provided.

with means of attaching same to any standard drilling rig or derrick, fastened with hinges to the lower cross bar of said derrick a pulley mounted on the top of said main supports to carry a short cable for drilling, a lever provided to shift said drilling attachment for a temper screw to one side when not in use.

WILLIAM LESLIE BRUNER.

. Witnesses:

C. B. ToNnY, J12,

FRED L. BRONSON. 

